U.S. patent application number 15/800525 was filed with the patent office on 2018-05-03 for connector and contact.
This patent application is currently assigned to Tyco Electronics (Shanghai) Co. Ltd.. The applicant listed for this patent is Tyco Electronics (Shanghai) Co. Ltd.. Invention is credited to Yuquan Chen, Hao Wang, Hongjun Yin, Qijun Zhao.
Application Number | 20180123277 15/800525 |
Document ID | / |
Family ID | 61912479 |
Filed Date | 2018-05-03 |
United States Patent
Application |
20180123277 |
Kind Code |
A1 |
Wang; Hao ; et al. |
May 3, 2018 |
Connector And Contact
Abstract
A contact comprises a first cylindrical section, a second
cylindrical section, and a transition section connected between the
first cylindrical section and the second cylindrical section. The
first cylindrical section has a first peripheral wall with a first
diameter and a first protrusion rib disposed on the first
peripheral wall. The second cylindrical section has a second
peripheral wall with a second diameter less than the first diameter
and a second protrusion rib disposed on the second peripheral
wall.
Inventors: |
Wang; Hao; (Shanghai,
CN) ; Yin; Hongjun; (Shanghai, CN) ; Chen;
Yuquan; (Shanghai, CN) ; Zhao; Qijun;
(Shanghai, CN) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Tyco Electronics (Shanghai) Co. Ltd. |
Shanghai |
|
CN |
|
|
Assignee: |
Tyco Electronics (Shanghai) Co.
Ltd.
Shanghai
CN
|
Family ID: |
61912479 |
Appl. No.: |
15/800525 |
Filed: |
November 1, 2017 |
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
H01R 13/428 20130101;
H01R 12/65 20130101; H01R 9/00 20130101; H01R 4/58 20130101; H01R
9/0518 20130101; H01R 4/185 20130101; H01R 4/26 20130101; H01R 9/24
20130101; H01R 11/28 20130101; H01R 43/048 20130101 |
International
Class: |
H01R 13/428 20060101
H01R013/428; H01R 4/18 20060101 H01R004/18; H01R 4/58 20060101
H01R004/58 |
Foreign Application Data
Date |
Code |
Application Number |
Nov 1, 2016 |
CN |
201610971160.X |
Claims
1. A contact, comprising: a first cylindrical section having a
first peripheral wall with a first diameter and a first protrusion
rib disposed on the first peripheral wall; a second cylindrical
section having a second peripheral wall with a second diameter less
than the first diameter and a second protrusion rib disposed on the
second peripheral wall; and a transition section connected between
the first cylindrical section and the second cylindrical
section.
2. The contact of claim 1, wherein the first protrusion rib and the
second protrusion rib each have a circular cross section.
3. The contact of claim 1, wherein the first protrusion rib extends
circumferentially around the first peripheral wall and the second
protrusion rib extends circumferentially around the second
peripheral wall.
4. The contact of claim 1, wherein the second protrusion rib is
positioned adjacent the transition section and is spaced apart from
the transition section by a predetermined distance in a
longitudinal direction of the contact.
5. The contact of claim 4, wherein the predetermined distance is
greater than 1/50 of a total length of the contact and less than
1/10 of the total length of the contact.
6. The contact of claim 1, further comprising a wing connected to
an end of the first cylindrical section opposite the transition
section.
7. The contact of claim 6, wherein the wing is disposed around an
outer insulation layer of a wire.
8. The contact of claim 7, wherein the first cylindrical section is
crimped on a conductor of the wire inserted into the first
cylindrical section.
9. The contact of claim 1, wherein a diameter of the transition
section is gradually reduced from being equal to the first diameter
at the first cylindrical section to being equal to the second
diameter at the second cylindrical section.
10. The contact of claim 1, wherein the contact is monolithically
formed from a single metal plate.
11. A connector, comprising: an insulative body; and at least one
contact disposed in the insulative body, the contact including a
first cylindrical section having a first peripheral wall with a
first diameter and a first protrusion rib disposed on the first
peripheral wall, a second cylindrical section having a second
peripheral wall with a second diameter less than the first diameter
and a second protrusion rib disposed on the second peripheral wall,
and a transition section connected between the first cylindrical
section and the second cylindrical section, the first protrusion
rib and the second protrusion rib engaging the insulative body by
an interference fit.
12. The connector of claim 11, wherein the first protrusion rib and
the second protrusion rib each have a circular cross section.
13. The connector of claim 11, wherein the first protrusion rib
extends circumferentially around the first peripheral wall and the
second protrusion rib extends circumferentially around the second
peripheral wall.
14. The connector of claim 11, wherein the second protrusion rib is
positioned adjacent the transition section and is spaced apart from
the transition section by a predetermined distance in a
longitudinal direction of the contact.
15. The connector of claim 14, wherein the predetermined distance
is greater than 1/50 of a total length of the contact and less than
1/10 of the total length of the contact.
16. The connector of claim 11, wherein the contact includes a wing
connected to an end of the first cylindrical section opposite the
transition section.
17. The connector of claim 16, wherein the wing is disposed around
an outer insulation layer of a wire.
18. The connector of claim 17, wherein the first cylindrical
section is crimped on a conductor of the wire inserted into the
first cylindrical section.
19. The connector of claim 11, wherein a diameter of the transition
section is gradually reduced from being equal to the first diameter
at the first cylindrical section to being equal to the second
diameter at the second cylindrical section.
20. The connector of claim 11, wherein the contact is
monolithically formed from a single metal plate.
Description
CROSS-REFERENCE TO RELATED APPLICATION
[0001] This application claims the benefit of the filing date under
35 U.S.C. .sctn. 119(a)-(d) of Chinese Patent Application No.
201610971160.X, filed on Nov. 1, 2016.
FIELD OF THE INVENTION
[0002] The present invention relates to an electrical connector
and, more particularly, to a contact of the electrical
connector.
BACKGROUND
[0003] Known electrical connectors generally have an insulative
body and a contact disposed in the insulative body. A rear end of
the contact is crimped on a conductor of a wire and a front end of
the contact is mated with a contact of a mating connector.
[0004] The contact is commonly formed by stamping and bending a
metal plate and a gap is disposed between the contact and the
insulative body after the contact is assembled into the insulative
body. As a result, the contact is movable within the insulative
body and may be easily offset from its correct installation
position. A large positional deviation may occur after the contact
is assembled into the insulative body, leading to an unreliable
electrical connection between the connector and the mating
connector.
SUMMARY
[0005] A contact according to the invention comprises a first
cylindrical section, a second cylindrical section, and a transition
section connected between the first cylindrical section and the
second cylindrical section. The first cylindrical section has a
first peripheral wall with a first diameter and a first protrusion
rib disposed on the first peripheral wall. The second cylindrical
section has a second peripheral wall with a second diameter less
than the first diameter and a second protrusion rib disposed on the
second peripheral wall.
BRIEF DESCRIPTION OF THE DRAWINGS
[0006] The invention will now be described by way of example with
reference to the accompanying Figures, of which:
[0007] FIG. 1 is a perspective view of a contact according to an
embodiment of the invention;
[0008] FIG. 2 is a top view of the contact of FIG. 1;
[0009] FIG. 3 is a side view of the contact of FIG. 1; and
[0010] FIG. 4 is a sectional view of a connector according to an
embodiment of the invention having the contact of FIG. 1.
DETAILED DESCRIPTION OF THE EMBODIMENT(S)
[0011] Embodiments of the present invention will be described
hereinafter in detail with reference to the attached drawings,
wherein like reference numerals refer to the like elements. The
present invention may, however, be embodied in many different forms
and should not be construed as being limited to the embodiments set
forth herein; rather, these embodiments are provided so that the
disclosure will be thorough and complete and will fully convey the
concept of the invention to those skilled in the art.
[0012] A connector according to the invention is shown in FIG. 4.
The connector comprises an insulative body 200 and at least one
contact 100 disposed in the insulative body 200. A first end of the
contact 100, a right end in the orientation of FIG. 4, is
electrically connected to a conductor 310 of a wire 300. A second
end of the contact 100 opposite the first end, a left end in the
orientation of FIG. 4, is electrically mated with a contact of a
mating connector (not shown). In an embodiment, the contact 100 is
monolithically formed by stamping and bending a single metal
plate.
[0013] The contact 100, as shown in FIGS. 1-3, comprises a first
cylindrical section 110 at a first end of the contact 100, a second
cylindrical section 120 at an opposite second end of the contact
100, a transition section 130 between the first cylindrical section
110 and the second cylindrical section 120, and a wing 140
connected to the first cylindrical section 110.
[0014] As shown in FIGS. 1-3, the second cylindrical section 120
has a diameter less than that of the first cylindrical section 110.
The transition section 130 is connected between a second end of the
first cylindrical section 110 and a first end of the second
cylindrical section 120. A diameter of the transition section 130
is gradually reduced from a diameter equal to the first cylindrical
section 110 at the first cylindrical section 110 to a diameter
equal to the second cylindrical section 120 at the second
cylindrical section 120, so as to realize a smooth transition
between the first cylindrical section 110 and the second
cylindrical section 120.
[0015] As shown in FIGS. 1-3, the contact 100 has a first
protrusion rib 111 disposed circumferentially around a first
peripheral wall of the first cylindrical section 110 and a second
protrusion rib 121 disposed circumferentially around a second
peripheral wall of the second cylindrical section 120. In an
embodiment, the first protrusion rib 111 and the second protrusion
rib 121 each have a circular cross section.
[0016] The second protrusion rib 121, as shown in FIG. 2, is
positioned adjacent the transition section 130 and spaced apart
from the transition section 130 by a predetermined distance d in a
longitudinal direction of the contact 100. The positioning of the
second protrusion rib 121 reduces the difficulty of forming the
contact 100 by stamping, ensuring the shape and dimensional
precision of the second protrusion rib 121. In an embodiment, the
predetermined distance d is set according to an actual situation;
the predetermined distance d may be set to be greater than 1/50 of
a total length of the contact 100 and less than 1/10 of the total
length of the contact 100.
[0017] The wing 140, as shown in FIGS. 1-3, is connected to a first
end of the first cylindrical section 110 opposite the second end of
the first cylindrical section 110 connected to the transition
section 130. The wing 140, as shown in FIG. 4, is adapted to be
crimped around an outer insulation layer 320 of the wire 300 while
the first cylindrical section 110 is adapted to be crimped around
the conductor 310 of the wire 300 inserted into the first
cylindrical section 110. The wire 300 is fixed and electrically
connected to the first end of the contact 100.
[0018] As shown in FIG. 4, when the contact 100 is inserted into
the insulative body 200, the first protrusion rib 111 and the
second protrusion rib 121 each engage the insulative body 200 by an
interference fit. The contact 100 is thereby positioned in the
insulative body 200 at a plurality of different points and is
reliably fixed in the insulative body 200. The first protrusion rib
111 and the second protrusion rib 121 effectively prevent the
contact 100 from being offset from its correct installation
position in the insulative body 200, improving the reliability of
the electrical connection between the connector and the mating
connector to be mated with the connector.
* * * * *